Project Overview

This projects conducts research on multiport bipolar converter architectures for megawatt charging hubs (MCH), a megawatt-scale electric vehicle fast charging infrastructure that are integrated with the medium voltage AC (MVAC) grids. This project will contribute to net-zero transportation by accelerating electrification in logistics and passenger mobility. Building on the prior research conducted under FES project T06-P01, this project expands it by developing 1) a modular multiport isolated converter system with improved redundancy and reliability using industry-standard power electronic modules for dual-bipolar DC voltage distribution in MCH, 2) a robust control strategy, supported by power flow analysis, to maintain stable bipolar voltage balancing under heavily unbalanced conditions. Moreover, the investigation will integrate battery energy storage systems (BESSs) and renewable energy sources (RES) to flatten the megawatt-scale grid power demand of MCHs.